|(Picture borrowed from Hurtigruten.)|
The lights are the result of large solar explosions that travel from the sun and reacts with the earth's atmosphere.
So, what are the chances of seeing the Northern lights? You can get a reliable daily forecast from the University of Alaska Fairbanks.
One of the more comfortable ways to experience the northern lights, is to book a cruise with Hurtigruten. Sailing from Bergen and northbound you are set to experience the beauty of the northern lights as you get further north. When you're on a ship sailing through the dark, the lights will appear more intense than if you're watching from an urban area. Read more about Hurtigruten and the northern lights.